The DAISY Consortium are delighted to announce the first beta release of
their new open source software tool – Ace – an accessibility conformance
checking tool for EPUB 3 publications.
Based on the requirements specified in the new EPUB Accessibility
Conformance and Discovery Specification 1.0, Ace has been designed to check
packaged or unpackaged EPUB 3 files at any point in the publishing workflow
This beta release is actively seeking feedback from technical experts in
the publishing industry who are happy engaging with EPUB 3 code and working
through a command line interface. We would be grateful if you could share this
within your technical community and encourage feedback.
For further details and getting started with Ace, please visit
Looking forward to your feedback and comments.
COO, DAISY Consortium